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Author : B. A. M. Bouman
Publisher : Int. Rice Res. Inst.
Page : 352 pages
File Size : 47,7 Mb
Release : 2002
Category : Rice
ISBN : 9789712201820
Author : B. A. M. Bouman
Publisher : Int. Rice Res. Inst.
Page : 59 pages
File Size : 50,6 Mb
Release : 2007
Category : Rice
ISBN : 9789712202193
Author : J. W. Kijne,Randolph Barker,D. J. Molden
Publisher : CABI
Page : 354 pages
File Size : 47,5 Mb
Release : 2003
Category : Crops and water
ISBN : 9781845933395
First title in a major new seriesAddresses improving water productivity to relieve problems of scarcity and competition to provide for food and environmental securityDraws from scientists having a multitude of disciplines to approach this important problemIn a large number of developing countries, policy makers and researchers are increasingly aware of the conflicting demands on water, and look at agriculture to be more effective in its use of water. Focusing on both irrigated and rain-fed agriculture, this book gives a state of the art review of the limits and opportunities for improving water productivity in crop production. It demonstrates how efficiency of water use can be enhanced to maximize yields. The book represents the first in a new series of volumes resulting from the Comprehensive Assessment of Water Management in Agriculture, a research program conducted by the CGIAR's Future Harvest Centres, the Food and Agriculture Organization of the United Nations and partners worldwide. It will be of significant interest to those working in areas of soil and crop science, water management, irrigation, and development studies.
Author : Tejendra Chapagain
Publisher : Unknown
Page : 0 pages
File Size : 41,8 Mb
Release : 2017
Category : Agricultural intensification
ISBN : 1536126195
The System of Rice Intensification (SRI) involves the adoption of certain changes in management practices for rice cultivation that create a better growing environment for rice crops. The use of intermittent irrigation with alternate wet and dry intervals (AWD) and single transplanting of the younger seedlings in wider spacing areas are regarded as the key factors in SRI for better crop growth and productivity. Field experiments were conducted in Chiba, Japan during the two consecutive rice growing seasons (May-September) of 2008-09 to observe the effects of SRI components on rice crop performance, field environment, water savings, and water-wise rice production. The effects of the irrigation method, age of seedlings and spacing were evaluated in the 2008 rice season with eight treatment combinations in a split-split plot design (S-SPD). AWDI at 10 day intervals and continuous flooding throughout the cropping season were the two main plot factors while the effects of seedling age (14 and 21 days) and plant spacing (30x30 cm2 and 30x18 cm2) were evaluated as sub and sub-sub plot factors, respectively. The experimental results revealed that the SRI management with the proposed AWDI can save a significant amount of irrigation water (29%) without reduced grain yield (7.41t/h compared with 7.37t/ha from normal planting with ordinary water management). Water productivity was also observed to be significantly higher in all combinations of practices in AWDI plots: 1.74 g/liter with SRI management and AWDI as compared to 1.23 g/liter in normal planting with ordinary water management. In addition, the research outcomes showed a role of AWDI in minimizing pest and disease incidence, shortening the rice crop cycle and also improving the plant stand until harvest. Synergistic effects of younger seedlings and wider spacing were seen in tillering ability, panicle length and a number of filled grains that ultimately led to higher productivity with better grain quality. Field experiments with the complete sets of SRI practices were carried out in Randomized Complete Block Design (RCBD) during the 2009 rice growing season in the same field. SRI (with 8 day old seedlings) and conventional (with 22 day old seedlings) practices were the first factor (cultivation method), while organic and inorganic managements were evaluated as the second factor (management method) in the field experiments. The highest yield was observed through the conventional method with inorganic management (6.84t/h) that was on par with the organic SRI (6.59t/h) followed by organic conventional (6.48t/h). It was recorded as 5.92t/h in inorganic SRI management. Overall, the effects of SRI components were positive and significant on a per plant basis; however, they did not differ significantly in terms of grain yield per unit area. The development of healthy and vigorous roots, increased stem diameter, greater productive leaf area, longer panicles, greater number of filled grains, development of plants tolerant to insect-pest and disease, and reduced plant lodging percentage were some notable achievements with SRI management. Water savings and water-wise rice production are other important issues that are likely to draw the attention of rice researchers and farm communities to adopt SRI under scarce water conditions. However, comparatively better grain yields with conventional management methods underscore a need for further investigations in defining an appropriate combination of practices for SRI management, considering local soil properties, prevailing climate and critical watering stages in rice crop management.
Author : International Water Management Institute (IWMI),International Rice Research Institute (IRRI),Wuhan University (WHU),CSIRO Land and Water Griffith Laboratory (Australia)
Publisher : IWMI
Page : 65 pages
File Size : 51,6 Mb
Release : 2004
Category : Rice
ISBN : 9789290905318
Work continues at two sites in China, the Zhanghe irrigation system (ZIS) in Hubei and the Liuyuankuo irrigation system (LIS) in Henan, and at the Murrumbidgee irrigation area (MIA) in Australia. Progress this year is reported by subproject. However, as we move into the modeling phase of the study, a major focus this coming year will be on integrating activities between subprojects.
Author : Waqar Ahmed Jehangir,Ilyas Masih,Shehzad Ahmed,Mustaq Ahmad Gill,Maqsood Ahmad,Riaz Ahmad Mann,Muhammad Rafiq Chaudhary,Asad Sarwar Qureshi,Hugh Turral
Publisher : IWMI
Page : 47 pages
File Size : 45,8 Mb
Release : 2007-04-23
Category : Crop yields
ISBN : 9789290906537
This working paper presents the results of the Pakistan Component of the Rice-Wheat Consortium Project on ‘Sustaining the rice-wheat production systems of Asia’. Rice and wheat crops are main nsources of human food and substantially contribute to feeding livestock. The advent of the green revolution in the 1960s resulted in a tremendous increase in the production of these two cereal crops and the rice-wheat cropping system emerged as a very important source of food supply in South Asia. Recent symptoms of stagnant growth rates in productivity and the degradation of the resource base pose serious challenges to future food security and natural resources management in the region. The growing scarcity of water in the region
Author : Y. H. Li,T. P. Tuong
Publisher : IWMI
Page : 133 pages
File Size : 47,5 Mb
Release : 2001
Category : Irrigation efficency
ISBN : 9789290904656
Contributed papers presented at the workshop.
Author : International Water Management Institute (IWMI) ,International Rice Research Institute (IRRI),Wuhan University (WHU),CSIRO Land and Water Griffith Laboratory (Australia)
Publisher : IWMI
Page : 38 pages
File Size : 51,5 Mb
Release : 2003
Category : Irrigation farming
ISBN : 9789290905066
The project is a follow-on to Impact of Water Saving Techniques in China (LWRl/98/66) that focused on the Zhanghe Irrigation System (ZIS) in Hubei Province and it has been expanded to include a second site in the drier Yellow river basin, the Liuyuankou Irrigation System (LIS) in Henan Province, and the Lower Murrumbidgee Catchment in Australia. An Australian partner, Commonwealth Scientific and Industrial Research Organization (CSIRO) was added to the team comprising the International Rice Research Institute (IRRI), International Water Management Institute (IWMI), Wuhan University (WHU) to strengthen our modeling and analytical capacity.
Author : Naeem Sarwar,Atique-ur-Rehman,Shakeel Ahmad,Mirza Hasanuzzaman
Publisher : Springer Nature
Page : 856 pages
File Size : 44,5 Mb
Release : 2022-04-09
Category : Technology & Engineering
ISBN : 9789811649554
This book collects all the latest technologies with their implications on the global rice cultivation. It discusses all aspects of rice production and puts together the latest trends and best practices in the rice production. Rice is produced and consumed worldwide and especially an important crop for Asia. It is a staple food in majority of population living is this continent which distinguishes this from rest of the world. Climatic fluctuations, elevated concentrations of carbon dioxide, enhanced temperature have created extreme weather conditions for rice cultivation. Also, increasing pest attacks make situation complicated for the farmers. Therefore, rice production technology also has to be adjusted accordingly. This book is of interest to teachers, researchers, plant biotechnologists, pathologists, agronomists, soil scientists, food technologists from different part of the globe. Also, the book serves as additional reading material for students of agriculture, soil science, and environmental sciences. National and international agricultural scientists, policy makers will also find this to be a useful read
Author : Bhagirath S. Chauhan,Khawar Jabran,Gulshan Mahajan
Publisher : Springer
Page : 563 pages
File Size : 42,6 Mb
Release : 2017-02-16
Category : Science
ISBN : 9783319475165
This book addresses aspects of rice production in rice-growing areas of the world including origin, history, role in global food security, cropping systems, management practices, production systems, cultivars, as well as fertilizer and pest management. As one of the three most important grain crops that helps to fulfill food needs all across the globe, rice plays a key role in the current and future food security of the world. Currently, no book covers all aspects of rice production in the rice-growing areas of world. This book fills that gap by highlighting the diverse production and management practices as well as the various rice genotypes in the salient, rice-producing areas in Asia, Europe, Africa, the Americas, and Australia. Further, this text highlights harvesting, threshing, processing, yields and rice products and future research needs. Supplemented with illustrations and tables, this text is essential for students taking courses in agronomy and production systems as well as for agricultural advisers, county agents, extension specialists, and professionals throughout the industry.
Author : Charles Rodgers and Petra J.G.J. Hellegers.
Publisher : Intl Food Policy Res Inst
Page : 55 pages
File Size : 55,5 Mb
Release : 2024-06-28
Category : Social Science
ISBN : 8210379456XXX
Author : Chu T Hoanh,Vladimir Smakhtin,Robyn Johnston
Publisher : CABI
Page : 240 pages
File Size : 55,8 Mb
Release : 2015-12-15
Category : Science
ISBN : 9781780643663
The book provides an analysis of impacts of climate change on water for agriculture, and the adaptation strategies in water management to deal with these impacts. Chapters include an assessment at global level, with details on impacts in various countries. Adaptation measures including groundwater management, water storage, small and large scale irrigation to support agriculture and aquaculture are presented. Agricultural implications of sea level rise, as a subsequent impact of climate change, are also examined.
Author : Mukhtar Ahmed,Claudio O. Stockle
Publisher : Springer
Page : 437 pages
File Size : 50,6 Mb
Release : 2016-09-06
Category : Technology & Engineering
ISBN : 9783319320595
This book is a comprehensive volume dealing with climate change impacts on agriculture, and which can help guide the redesign of agricultural management and cropping systems. It includes mitigation techniques such as use of bioenergy crops, fertilizer and manure management, conservation tillage, crop rotations, cover crops and cropping intensity, irrigation, erosion control, management of drained wetlands, lime amendments, residue management, biochar and biotechnology. It also includes Management of GHG emissions Crop models as decision support tools QTL analysis Crop water productivity Impacts of drought on cereal crops Silvopastoral systems Changing climate impact on wheat-based cropping systems of South Asia Phosphorous dynamics under changing climate Role of bioinformatics The focus of the book is climate change mitigation to enhance sustainability in agriculture. We present various kinds of mitigation options, ways to minimize GHG emissions and better use of the latest techniques in conservation and environmental-sustainability.
Author : Luis Catasús Guerra,International Water Management Institute
Publisher : IWMI
Page : 33 pages
File Size : 50,5 Mb
Release : 1998
Category : Agricultural productivity
ISBN : 9789290903697
Over the past decade, we have witnessed a growing scarcity of and competition for water around the world. As the demand for water for domestic, municipal, industrial, and environmental purposes rises in the future, less water will be available for agriculture. But the potentials for new water resource development projects and expanding irrigated area are limited. We must therefore find ways to increase the productivity of water used for irrigation. This paper reviews the literature on irrigation efficiency and on the potential for increasing the productivity of water in rice-based systems. It stresses the continuing confusion over the concepts of irrigation efficiency and water productivity. It identifies the reasons for the wide gap between water requirement and actual water input (both irrigation diversions and rainfall) in irrigated rice production systems and discusses potential opportunities for increasing water productivity both on-farm and at the system level. Based on the reported low farm and system level irrigation efficiencies, the potentials for water savings in rice production appear to be very large. But we do not know the degree to which various farm and system interventions will lead to sustainable water savings in the water basin until we can quantify the downstream impact of the interventions. Studies on the economic benefits and costs, and environmental aspects of alternative interventions are also lacking. This paper emphasizes the need to measure the productivity of water at farm, system, and basin levels, and to understand how the productivity at one level relates to the productivity at another. Without water balance studies to measure productivity at these different scales, it is not possible to identify the potential economic benefits of alternative interventions and the most appropriate strategies for increasing irrigation water p productivity in rice-based systems.
Author : Wim van der Hoek,R. Sakthivadivel,Melanie Renshaw,John B. Silver,Martin H. Birley,Flemming Konradsen
Publisher : IWMI
Page : 39 pages
File Size : 41,8 Mb
Release : 2001
Category : Irrigation
ISBN : 9789290904182
More irrigated land is devoted to rice than to any other crop. A method to save water in irrigated rice cultivation is the intermittent drying of the rice fields, known as alternate wet/dry irrigation (AWDI). This report reviews previous studies in AWDI, with a focus on mosquito vector control, water saving, and rice yields. Examples are provided from a number of countries.
